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8142706 = 2111371401
BaseRepresentation
bin11111000011111101110010
3120022200200201
4133003331302
54041031311
6450305414
7126132445
oct37037562
916280621
108142706
114661810
12288826a
1318c1390
14111d65c
15aac9c1
hex7c3f72

8142706 has 32 divisors (see below), whose sum is σ = 14587776. Its totient is φ = 3360000.

The previous prime is 8142683. The next prime is 8142727. The reversal of 8142706 is 6072418.

It is a super-2 number, since 2×81427062 = 132607322004872, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20106 + ... + 20506.

It is an arithmetic number, because the mean of its divisors is an integer number (455868).

Almost surely, 28142706 is an apocalyptic number.

8142706 is a deficient number, since it is larger than the sum of its proper divisors (6445070).

8142706 is a wasteful number, since it uses less digits than its factorization.

8142706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 8142706 is about 2853.5427103865. The cubic root of 8142706 is about 201.1822147390.

The spelling of 8142706 in words is "eight million, one hundred forty-two thousand, seven hundred six".

Divisors: 1 2 11 13 22 26 71 142 143 286 401 781 802 923 1562 1846 4411 5213 8822 10153 10426 20306 28471 56942 57343 114686 313181 370123 626362 740246 4071353 8142706